Live updates. So far (16:58 GMT), 2 people have been confirmed dead and several injured. It would have been worse if today wasn’t a Friday and there were less people in the building.
According to the Beeb, nobody has claimed responsibility for this yet. However, they mentioned that it could be – but not necessarily is – related to the fact that Norway has troops in Afghanistan as part of ISAF. Another possibility could be deranged environmentalists, as the department of energy and oil was hit quite badly.
Either way, it was entirely wrong. There isn’t a single place I can think of that deserves that, but if there is a list of such places, Norway isn’t on that list.
UPDATE: I’ve decided to wait until tomorrow before I make any more posts, once as many of the facts are in as possible.